5.3.5 fmakunbound [Function]

fmakunbound name ⇒ name

Pronunciation::

pronounced ,ef ’mak e n,baund or pronounced ,ef ’m\=a k e n,baund

Arguments and Values::

name—a function name.

Description::

Removes the function or macro definition, if any, of name in the global environment.

Examples::

(defun add-some (x) (+ x 19)) ⇒  ADD-SOME
 (fboundp 'add-some) ⇒  true
 (flet ((add-some (x) (+ x 37)))
    (fmakunbound 'add-some)
    (add-some 1)) ⇒  38
 (fboundp 'add-some) ⇒  false

Exceptional Situations::

Should signal an error of type type-error if name is not a function name.

The consequences are undefined if name is a special operator.

See Also::

fboundp , makunbound